Galapagos Islands

Galapagos finches

Darwin's finches are 14 different closely related species of finches Charles Darwin discovered on the Galapagos Islands.

Genus Geospiza

Genus Camarhynchus

Large Cactus Finch (Geospiza conirostris)

Vegetarian Finch (Camarhynchus crassirostris syn Platyspiza crassirostris)

Sharp-beaked Ground Finch (Geospiza difficilis)

Large Tree Finch (Camarhynchus psittacula)

Medium Ground Finch (Geospiza fortis)

Medium Tree Finch (Camarhynchus pauper)

Small Ground Finch (Geospiza fuliginosa)

Small Tree Finch (Camarhynchus parvulus)

Large Ground Finch (Geospiza magnirostris)

Woodpecker Finch (Camarhynchus pallidus)

Common Cactus Finch (Geospiza scandens)
(Geospiza parvula)

Genus Certhidea

Genus Pinaroloxias

Warbler Finch - (Certhidea olivacea) Cocos Island Finch - (Pinaroloxias inornata)

Galapagos Islands Land birds pictures, Sharp-beaked Ground FinchDarwin's voyage on HMS Beagle, and the finches in particular, are known to have influenced his thinking so that he would later produce a basic theory of evolution by natural selection. Darwin reasoned that there had to be a common ancestor. Later, much work was done by Peter and Rosemary Grant. The birds are all about the same size (10–20 cm). They mainly differ in the form of the bill. The bill is adapted to the food they eat. The birds are all brownish or black. They have short rounded wings and a rounded tail that often appears cocked to one side. Most male finch mature to a solid black color, while the females mature to a drab grayish color. Exceptions are made for the Vegetarian and Tree Finches the males never become completely black rather they have a black head, neck and upper breast. Warbler, Woodpecker and Mangrove Finches have more of an olive color.

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